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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)
- * Copyright 2008 by Steven Rostedt, Red Hat, Inc
- * (inspired by Andi Kleen's thunk_64.S)
- */
- #include <linux/linkage.h>
- #include <asm/asm.h>
- #include <asm/export.h>
- /* put return address in eax (arg1) */
- .macro THUNK name, func, put_ret_addr_in_eax=0
- SYM_CODE_START_NOALIGN(\name)
- pushl %eax
- pushl %ecx
- pushl %edx
- .if \put_ret_addr_in_eax
- /* Place EIP in the arg1 */
- movl 3*4(%esp), %eax
- .endif
- call \func
- popl %edx
- popl %ecx
- popl %eax
- RET
- _ASM_NOKPROBE(\name)
- SYM_CODE_END(\name)
- .endm
- THUNK preempt_schedule_thunk, preempt_schedule
- THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
- EXPORT_SYMBOL(preempt_schedule_thunk)
- EXPORT_SYMBOL(preempt_schedule_notrace_thunk)
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